Bicycle tire tread



FIG. 1 is a perspective view of a bicycle tire tread showing my new design, it being understood that the pattern is repeated uniformly throughout the circumference of the tread as shown schematically in solid lines;

FIG. 2 is an enlarged fragmentary plan view showing the tread pattern in greater detail;

FIG. 3 is an enlarged fragmentary side elevation view thereof; and

FIG. 4 is a transverse section view taken substantially along the line 4--4 of FIG. 3 illustrating the profile of the tire tread in greater detail.

The broken lines in the drawing are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a bicycle tire tread, as shown and described. 